At the Google I/O 2025 Developer Conference, Google launched Stitch, an AI-powered tool that helps design the front-end of the web and mobile application by generating the necessary UI elements and code.

Stitches can be prompted to create an application UI with several words or even images, providing HTML and CSS tags for the designs it generates. Users can choose between Google's Gemini 2.5 Pro and Gemini 2.5 Flash AI models to power Stitch's code and interface concepts.

Stitch continues to be popular as the so-called Vibe encoding (programmed using code-generated AI models). There are many large tech startups following emerging markets, including cursor manufacturers Anysphere, Cognition and Windsurf. Just last week, Openai launched a new auxiliary coding service called Codex. Yesterday, during its 2025 open launch, Microsoft unveiled a series of updates to its Github Copilot coding assistant.

Stitch can execute larger limits on what it can do compared to some other Vibe encoding products, but there are a lot of customization options. The tool supports direct export to figs and can expose the code so that it can be refined and processed in the IDE. Stitch also allows users to fine-tune any application design element they generate.

In a demonstration with TechCrunch, Google Product Manager Kathy Korevec showed off two projects created using Stitch: application-responsive mobile UI design for nerds and web dashboards for beekeeping.

“(stitch is) where you can come to do the initial iteration and then you can keep moving forward,” Korevec said. “What we want to do is make people super, super easy and approachable, so that people can do a next design thinking for them or build them for their next software.”

Shortly after I/O, Google plans to add a feature that will allow users to change their UI design by screenshotting the objects they want to adjust, Korevec said. She added that while Stitch is quite powerful, it is not about becoming a mature design platform like Figma or Adobe XD.

Together with Stitch, Google has expanded access to Jules, with its AI proxy designed to help developers fix bugs in their code. Now, the tool can help developers understand complex code, create pull requests on GitHub, and handle certain backlogs of projects and programming tasks.

In another demo, Korevec shows that Jules has upgraded a website running the deprecated Node.js version 16. After the upgrade was completed, Korevec asked Jules to verify that the site was still working - Jules did it.

Jules currently uses Gemini 2.5 Pro, but Korevec tells TechCrunch that users will be able to switch between different models in the future.

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